The northern flicker (Colaptes auratus) is a large, native woodpecker found throughout Montana and one of the most frequently encountered woodpecker species in residential areas. Unlike many woodpeckers that stay deep in forests, flickers are comfortable in suburban environments and are drawn to wood-sided homes, cedar shakes, log cabins, and even stucco and EIFS (synthetic stucco) surfaces.
Flickers engage in woodpecker behavior for three primary reasons: foraging for insects (particularly carpenter ants and beetles) inside wood, excavating nest or roost cavities, and "drumming" — a territorial and mate-attracting behavior in which they hammer rapidly on resonant surfaces. Unfortunately, metal flashing, gutters, wood siding, and chimney caps on homes can produce the same resonant quality as a dead tree, making your house an attractive drumming substrate.
Flicker activity peaks in late March through June — the breeding season — but cavity excavation can occur in late summer as well when birds seek winter roost holes. Because the northern flicker is a native species protected under the Migratory Bird Treaty Act, all management approaches must be non-lethal and comply with federal regulations. Montana Pest Solutions is experienced in fully legal, humane flicker deterrence.
Size
11–14 inches (large woodpecker)
Color
Brown barred back; red or yellow underwing; spotted breast
Active Season
Year-round resident; damage peaks March–June
Risk Level
Medium (structural damage; legally protected)
Habitat
Forest edges, suburbs; wood siding, log homes
Protection status
Protected under the Migratory Bird Treaty Act
SIGNS OF INFESTATION
Identifying Northern Flicker Activity on Your Home
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Loud, rapid drumming — An extremely fast, loud hammering on your siding, gutters, or chimney cap — often starting at dawn.
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Excavated holes in siding — Round to oval holes 1.5–3 inches in diameter in wood siding, fascia boards, or corner trim.
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Rows of small holes — Lines of small holes in wood indicate foraging for insects just below the surface.
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Repeated activity on the same spot — Flickers return to productive foraging or drumming sites day after day.
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Visible bird on the structure — A large, patterned woodpecker clinging to your siding or eaves.
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Wood debris on the ground — Wood chips and shavings below excavation sites.
HEALTH RISKS
Northern flickers pose no direct health risk to humans. They do not attack people and do not carry diseases of significance to humans. The concern is purely property-related.
PROPERTY DAMAGE
Flicker damage ranges from superficial (drumming on metal flashing, which makes noise but causes no structural damage) to significant (cavity excavation in structural wood siding, fascia boards, or even rigid foam insulation). A single flicker working on a cedar-sided home can excavate a fist-sized hole in hours. Once a hole exists, it becomes a point of entry for moisture, insects, and other wildlife including squirrels and wasps. Foraging holes, while smaller, can be numerous and compromise the weather resistance of wood siding. Stucco and EIFS (foam board) siding is particularly vulnerable — flickers can cause extensive surface damage very quickly.
